Pipe coupling



2 Sheets-Sheet l H E NEELY PIPE COUPLING Aug. 22, 1950 F1 ed NOV 13 1948 2, 1950 H. E. NEELY 2,519,847

PIPE COUPLING Filed Nov. 13, 1948 2 Sheets-Sheet 2 Patented Aug. 22, 1950 UNITED STATES PATENT OFFICE PIPE COUPLING Hearne Ellsworth Neely, Queens Village, N. Y.

Application November 13, 1948, Serial No. 59,827

'7 Claims.

My invention relates to a pipe coupling and its novelty resides in the adaptation and combination of parts as will be more fully hereinafter pointed out.

There have been many attempts to solve the problem of effecting a tight flange joint or lap joint between two sections of pipe which is simple and can be readily assembled and disassembled easily and quickly with the pressure at the inner edge of the flange but none of these have solved this problem.

My device not only solves this problem most efiectively but does so in a simple inexpensive and practical manner and for the first time places the greatest pressure around the inner edge of the flanges instead of around the outer edges of the flanges as in the prior art devices thereby effecting a more perfect and stronger joint.

Referring to the drawings Fig. 1 is a side elevation of my pipe coupling in position on the joint of two pipes which are broken away at their outer ends for convenience in illustration;

Fig. 2 is an end view of the same looking in from the right hand end on line 22 of Fig. 1;

Fig. 3 is a vertical section on the line 33 of Fig. 2 with a portion broken away to show the interior structure;

Fig. 4 is a top plan view of a pressure ring of one embodiment of my device with a portion broken away for convenience in illustration;

Fig. 5 is a side elevation of Fig. 4;

Fig. 6 is a side elevation of a second embodiment of my device in which a pipe and flange with the pressure elements are made integral with the flange, a portion of the pipe being broken away for convenience in illustration;

Fig. 7 is a section on the line 1-1 of Fig. 6;

Fig. 8 is a side elevation of my complete coupling with flanges as shown in Figs. 6 and 7 and part being broken away to show the interior construction;

Fig. 9 is a side elevation of one of the half housings; and

Fig. 10 is a bottom plan view of the same with a portion broken away for convenience in illustration.

In the drawings, II are metal pipe sections having integral flanges [2 which together form the usual lap joint l3 between which is mounted the usual gasket 14 of flexible material to efiect a tight joint.

Over the pipes II are slidably mounted pressure rings l5 of suitable metal on the outer faces of which are integrally formed wedge shaped protrusions Hi all of which are in absolute alignment with each other and have lower points I61; and high points i612 and a guide element l! is made integral with said rings [5 so that it projects above the wedge protrusions 16 and acts as a guide for both housing halves l8 to insure perfect alignment of both sets of wedge protrusions it so that both said housing halves IE will slide up onto both sets of said wedges l6, uniformly and evenly.

Said housing halves [8 are constructed of a suitable metal and each have inner side walls 19 which are spaced accurately so as to ride up on the perfectly aligned wedge elements It from the lower ends [6a and put binding pressure on the high portions [61) of the Wedge elements IS.

The housing halves each have integral tabs 20 at each end in which are holes 2| through each adjacent pair of which threaded bolts 22 are adapted to be placed and over said bolts 22 threaded nuts 23 are adapted to be screwed to draw said two housing halves together up onto the aligned wedge elements It and lock said housing halves rigidly in position over said lap joint [3.

In my device, there is the alternative structure of the aligned wedge shaped protrusions l5 being formed directly on the flange 12 as shown in Figs. 6, 7 and 8, or the use of pressure rings IS with the aligned wedge shaped protrusions l6 formed on said rings as shown in Figs. 3, 4 and 5.

In assembling my device in actual use, the lap joint formed by two pipe ends II, with flanges l2 coming together with a gasket i i mounted between will have pressure rings l5 mounted over each pipe ll back of the flanges 52 so that the aligned wedge shaped protrusions l6 face outwardly away from the flanges l2. The housing halves l8 guided by guide elements 5! will both be directed in alignment with aligned protrusions l6 up onto the same starting at the lowest points I6a of said protrusions l6 and sliding up thereon and as the bolts 22 placed through the adjacent holes 2| in tabs 29 of said housing halves l8 and the nuts 23 are tightened up on said bolts 22 the housing halves will be drawn toward each other so that the side walls l9 of the housing halves will slide up on aligned wedge shaped protrusions Hi from Ilia to 15b so as to effect a uniform pressure around the inner edge of the flanges l 2 and secure an air, gas and liquid tight joint in locked position.

In the structure shown in Figs. 6, 7 and 8 the aligned wedge shaped protrusions it are integral with the flanges l2 so that no pressure rings l5 are necessary but otherwise the assembly will be the same as with the pressure rings 15.

My structure is adapted for light or heavy pipe construction and may be used in connection with materials other than metal.

The shape of the aligned wedge shaped protrusions It may vary but in order to'secure a uniform pressure around the inner edge of the flanges [2 it is necessary that said protrusions is be in absolute alignment as to both flanges l2 and that the high point of the protrusions l6 be adjacent the inner edges of the flanges I2.

Many variations may be made'in the device as shown and described without departing from the spirit and intent of the same and which variations are encompassed in the claims herein.

I claim:

1. A pipe coupling comprising. two pipes having abutting pipe flanges, said flanges having ontheir back faces wedge shaped protrusions in alignment running in from the outer edge of the flangeito the inner edge of same, a gasket-between-said flanges, two housing halves,;guideelements for said two housing halves .on each of said flanges saidtwo housing halves being adapted toslide up on each of said aligned Wedge shaped protrusions and-flanges and locking means to draw'and lock them together to efiecta-liquid and gas tight joint.

2. In a pipe-coupling'two pipes'havingabuting pipe flanges, .a gasket between saidflanges, a pressure locking ringmounted over'each of said pipes adjacent said flanges and having wedge shaped protrusions in alignment on the outer sideof same running .up from the outer edge of the rings to the inneredges of.same,.two housing halves, a guide element'on the outer edge of each of said'locking ringsfor said two housing; halves, said two housing halves being adapted to slide up on the aligned wedge shaped protrusions'of each of said pressure rings and locking means. to draw up and lock them thereover' tov effect a water and gas tight joint.

3. In a pipe coupling, the combination of two pipe sections havingabutting integral flanges at one end, wedge shaped protrusions inialignment on the back of each of said flanges with the:high portion of said wedges adjacent the inneredge of said flanges, a gasket between said abutting flanges, half housing members adapted to slide up onsaidwedges and effect pressure on the high portions of said wedges, guide .elements'for :said housing'members on the outer edge of reach of saidflanges, and locking means comprising tabs integral with and projecting from the open ends of each of said half housing members and holes in said tabs through which bolts and nuts-are mounted to draw up and lock them-.tightlyfin place.

4. A pipe coupling comprising two pipeshaving a uttin p n flan sa d flan es having on their back faces protrusions'with highest portions adjacent the inner edge of the flanges in alignment running in from the outer edge of the flange to the inner edge of same, a gasket between said flanges, two housing halves, said two housing halves being adapted to slide up on each of said aligned protrusions with the highest portions adjacent the inner edge of the flanges and locking means to draw and lock them together to effect a liquid and gas tight joint.

5. In a pipe coupling, two pipes having abutting pipe flanges, a gasket between said flanges, a pressure locking ring mounted over each of said pipes adjacent said flanges and having protrusions in alignment and with the highest portions adjacent the inner edges of the flanges and said protrusions being on the outer side of said locking rings, two housing halves adapted to slide up and onto the aligned protrusions with the highest portions adjacent the inner edges of the flanges of each of said pressure rings and locking means to draw up and lock said housing halves thereover to effect a water and gas tight joint.

6. In a pipe coupling, the combination of two pipe sections each having an integral flange at one end adapted to abut each other, protrusions with the highest portions adjacent the inner edge of the flanges and in alignment on the back 01 each of said flanges, a gasket between said abutting flanges, half housing members adapted to slide up on all of said aligned protrusions and eliect pressure on the high portions of said protrusions around the inner edges of the flanges and locking means comprising tabs integral with and projecting from the open ends of each of said half housing members and holes in said tabs through which threaded bolts and nuts are mounted to draw up and lock said half housings tightly in place.

7. In a pipe coupling, the combination of two pipe sections each having an integral flange at one end which flanges are adapted to abut each other said flanges having on their back faces sloping protrusions with the highest portions adjacent the inner edge of the flanges and all of said protrusions being in alignment running in from the outer edge of the flanges, a gasket between said flanges, two housing halves, said two housing halves being adapted to slide up on said sloping aligned protrusions and locking means to draw up said housings onto the highest portions of all of said sloping aligned protrusions and effeet the greatest pressure around the inner edges of both of said flanges and lock said flanges together in a liquid and gas tight joint.

HEARNE ELLSWORTH NEELY.

REFERENCES QITED The following references are of record in the flle of this patent:

UNITED STATES PATENTS Number Name Date 711,946 Day Oct. 28, 1902 712,014 Smith et a1 ,Oct. 28, 1902 2,214,381 'Rastetter Sept. 10, 1940 

